P1143 Citroen Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 1

P1143 Citroen Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 1 Possible causes – Faulty Front Heated Oxygen Sensor Bank 1– Intake air leaks– Front Heated Oxygen Sensor Bank 1 harness is open or shorted– Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection– Fuel pressure– Injectors Tech description If there are no intake…

P1143 Chrysler Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 1

P1143 Chrysler Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 1 Possible causes – Faulty Front Heated Oxygen Sensor Bank 1– Intake air leaks– Front Heated Oxygen Sensor Bank 1 harness is open or shorted– Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection– Fuel pressure– Injectors Tech description If there are no intake…

P1143 Chevrolet Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 1

P1143 Chevrolet Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 1 Possible causes – Faulty Front Heated Oxygen Sensor Bank 1– Intake air leaks– Front Heated Oxygen Sensor Bank 1 harness is open or shorted– Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection– Fuel pressure– Injectors Tech description If there are no intake…

P1143 Cadillac Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 1

P1143 Cadillac Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 1 Possible causes – Faulty Front Heated Oxygen Sensor Bank 1– Intake air leaks– Front Heated Oxygen Sensor Bank 1 harness is open or shorted– Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection– Fuel pressure– Injectors Tech description If there are no intake…

P1143 Buick Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 1

P1144 Buick Heated Oxygen Sensor 1 Rich Shift Monitoring Possible causes – Faulty Front Heated Oxygen Sensor Bank 1– Front Heated Oxygen Sensor Bank 1 harness is open or shorted– Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection– Inappropriate fuel pressure– Faulty fuel injectors– Intake air leaks may be faulty– Exhaust gas leaks…

P1143 BMW Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 1

P1143 BMW Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 1 Possible causes – Faulty Front Heated Oxygen Sensor Bank 1– Intake air leaks– Front Heated Oxygen Sensor Bank 1 harness is open or shorted– Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection– Fuel pressure– Injectors Tech description If there are no intake…

P1143 Audi Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 1

P1143 Audi Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 1 Possible causes – Faulty Front Heated Oxygen Sensor Bank 1– Intake air leaks– Front Heated Oxygen Sensor Bank 1 harness is open or shorted– Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection– Fuel pressure– Injectors Tech description If there are no intake…

P1143 Acura Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 1

P1143 Acura Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 1 Possible causes – Faulty Front Heated Oxygen Sensor Bank 1– Intake air leaks– Front Heated Oxygen Sensor Bank 1 harness is open or shorted– Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection– Fuel pressure– Injectors Tech description If there are no intake…

P1143 Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 1

P1143 Heated Oxygen Sensor 1 Lean Shift Monitoring Bank 1 Possible causes – Faulty Front Heated Oxygen Sensor Bank 1– Intake air leaks– Front Heated Oxygen Sensor Bank 1 harness is open or shorted– Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection– Fuel pressure– Injectors Tech description If there are no intake air…